QF Adjustable Nipple With O-Ring
The Quick-Fit (QF) Adjustable Nipple is an adjustable sleeve, made at a slightly larger diameter than QF pipe and is used to provide variable length adjustments in straight pipe.
For example, if a 2 foot piece of pipe is needed, the pipe is cut slightly shorter than 2 feet. The adjustable nipple then slides over the pipe, and, using the O-ring, is clamped at the spot to make the whole assembly 2 feet in length. Using this technique, any straight pipe length can be attained by using any number of pipes along with the QF Adjustable Nipple.
Like the QF Pipes, nipples have rolled ends and are laser welded, and are manufactured as follows:
- With Galvanized or Stainless steel metal (optionally with Powder Coated carbon steel), in 20 gauge to 22 gauge metal thickness (optionally with 18 gauge or 16 gauge metal)
- Diameters from 3 inches to 24 inches
- A Black Nitrile (buna-N, NBR) O-ring is included as standard, with Red Silicone O-rings Optional for high temperature applications
QF Adjustable Nipples come in standard lengths of approximately 11 inches. Short QF Adjustable Nipples are also available, at a length of 6 inches, for short straight pipe runs between 6 inches and 11 inches in length.
- Construction: Longitudinal seam is laser welded.
| Size
in. |
Galvanized ga. |
304SS ga. |
Weight
lbs. |
Length (L)
in. |
OD
in. |
ID
in. |
Rolled Edge
nom. in. |
|---|---|---|---|---|---|---|---|
| 3 | 22 | 22 | 0.80 | 11.250 | 3.20 | 3.12 | 0.2 |
| 4 | 22 [18] | 22 [20] | 1.05 | 11.375 | 4.03 | 3.96 | 0.2 |
| 5 | 22 [18] | 22 [20] | 1.30 | 11.375 | 5.03 | 4.96 | 0.2 |
| 6 | 22 [18] | 22 [20] | 1.60 | 11.375 | 6.06 | 5.99 | 0.2 |
| 7 | 22 [18] | 22 [20] | 2.40 | 11.125 | 7.07 | 7.00 | 0.3 |
| 8 | 22 [18] | 22 [20] | 2.70 | 11.000 | 8.06 | 8.00 | 0.3 |
| 9 | 22 [18] | 22 [20] | 3.05 | 11.000 | 9.06 | 9.00 | 0.3 |
| 10 | 22 [18] | 22 [20] | 3.40 | 10.875 | 10.07 | 10.00 | 0.3 |
| 11 | 22 [18] | 22 [20] | 3.80 | 10.625 | 11.19 | 11.12 | 0.3 |
| 12 | 22 [18] | 22 [20] | 4.20 | 10.625 | 12.17 | 12.11 | 0.4 |
| 13 | 20 [18] | 20 | 4.70 | 10.625 | 13.20 | 13.12 | 0.4 |
| 14 | 20 [18] | 20 | 5.85 | 10.625 | 14.18 | 14.10 | 0.4 |
| 15 | 20 [18] | 20 | 6.25 | 10.625 | 15.20 | 15.12 | 0.4 |
| 16 | 20 [18] | 20 | 6.65 | 10.625 | 16.18 | 16.10 | 0.4 |
| 17 | 20 [18] | 20 | 7.05 | 10.625 | 17.15 | 17.07 | 0.4 |
| 18 | 20 [18] | 20 | 7.45 | 10.625 | 18.18 | 18.10 | 0.4 |
| 20 | 20 [18] | 20 | 8.10 | 10.625 | 20.18 | 20.10 | 0.4 |
| 22 | 20 [18] | 20 | 8.80 | 10.625 | 22.19 | 22.11 | 0.4 |
| 24 | 20 [18] | 20 | 9.70 | 10.625 | 24.14 | 24.06 | 0.4 |
| Gauge | Inches | Millimeters |
|---|---|---|
| 22 | 0.0366 | 0.85 |
| 20 | 0.0396 | 1.01 |
| 18 | 0.0516 | 1.31 |
| 16 | 0.0635 | 1.61 |
| Gauge | Inches | Millimeters |
|---|---|---|
| 22 | 0.031 | 0.79 |
| 20 | 0.0375 | 0.95 |
- At temperatures ranging between 390° F and 480° F, the zinc-iron alloy layers in the galvanized steel will continue to provide a high level of protection from corrosion. However, there may be some peeling, changes in mechanical properties, and reduction in the corrosion protection. Recommended maximum service temperature is 390° F.
- For 304 SS metal, bluing may occur at temperatures of 800° F and above.
| Item | Material | Compliance/Rating |
|---|---|---|
| QF Adjustable Nipple | Galvanized | ASTM A653 with a G-90 Rating |
| 304 SS | Finish meets ASTM A240 | |
| 316 SS | Finish meets ASTM A240 | |
| 3M Scotch Seal Metal Sealant 2084 | Polyurethane | ASTM E162 ASTM E662 Bombardier SP 800-C |
| Rock River Silicone Sealant | 100% Silicone | ASTM C920 Class 25 TT-S-00230C Class A and TT-S-001543A FDA No. 421 CFR 117.2600, conforms to FDA requirements |
| Red Devil HVAC/R High Temperature Silicone Sealant | Silicone | ASTM C920 Class 25 TT-S-00230C Class A and TT-S-001543A CEBTP 432.6 140-2 Mil Spec 46106A CGSB 19C9-9B DIN 18540 Part 2 Orex 150031-2 |
| O-ring, black | Buna-N | 60 Duro-Meter hardness |
| O-ring, red | Silicone rubber | ZZ-R-765 Class 2A 2B grade 70 AMS-3304E 3304F and 3303G FDA approved |